"""
1x1=1
1x2=2 2x2=4
1x3=3 2x3=6 3x3=9
...
...
1x9=9.........9x9=81
"""
for i in range(9):
    for j in range(i+1):
        print('%dx%d=%d' % (j + 1, i + 1, (j + 1) * (i + 1)), end=' ')
    print()
